Martin Marietta Materials Inc

MLMCIK 0000916076 · Every Form 4 filed by insiders at this issuer. See financials →

Annual report (10-K)

Latest 10-K filed Feb 19, 2026. Sentiment + YoY language diff vs prior year. Read sections →

Signal:Mild negative shiftFull-doc fallback

Full filing:tone -0.0093Δ-0.001290% similar+586/-504 ¶

Sentiment via Loughran-McDonald lexicon · YoY diff via Jaccard similarity + paragraph set difference.

Recent 8-K announcements

Per-item disclosure feed. Item 2.02 is the earnings release.

May 14, 2026no items parsed Apr 30, 2026no items parsed Apr 27, 2026no items parsed Feb 23, 2026no items parsed Feb 13, 2026no items parsed

YoY shift: Neutral

Year-over-year tone shift - average net-tone change across Risk Factors and MD&A vs the prior 10-K. This filing is -0.12pp more bearish than last year's.

Why YoY instead of absolute: the LM lexicon has ~6.6× more negative words than positive (legal/risk-disclosure language is heavy on hedging), so every 10-K reads bearish on raw tone. Year-over-year change strips that bias and surfaces the actual shift in management's framing.

Per-snippet highlights

Sentence-level sentiment highlighting with category and subcategory filters is coming once the snippet-scoring pipeline lands. For now, dig into the actual section text on the Sections tab.

Top insiders

Most active reporters at Martin Marietta Materials Inc

Name	Roles	Filings
Brooks Oliver W	Officer	8
Mohr John P	Officer	8
McCunniff Donald A.	Officer	6
Perez Laree E	Director	6
Ables Dorothy M	Director	5

Showing 11-15 of 27

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All filings

238 Form 4 / 4-A filings, newest first

Filed	Insider	Top transaction	Shares	Price	Value
Jun 2, 2026	Lyons Martin J Director	AGrant	61	$581.64	$35,480
Jun 2, 2026	Pike Thomas Director	AGrant	59	$581.64	$34,317
Jun 2, 2026	Wajsgras David C Director	AGrant	69	$581.64	$40,133
May 18, 2026	Ables Dorothy M Director	AGrant	313	$0.00	$0
May 18, 2026	Delly Gayla J Director	AGrant	313	$0.00	$0

Showing 1-5 of 238

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Real-time Form 4 intelligence. Smarter insider tracking.

Filed		Top transaction	Shares	Price	Value